The Flickr Ngc2669 Image Generatr

This is the final version of the series. It took 3 successive nights to obtain the data, and I could enjoy processing them for a week. I put 60-second and 240-second frames taken with clear filter on HII OIII enhanced starless frame. It resulted in this dust and gas enhanced and stars smaller and crisp image. I could make this deeper image with the gimmick easily. I am happy at the final result.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband Filter or Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

This is the final version of the series. It took 3 successive nights to obtain the data, and I could enjoy processing them for a week. I put 60-second and 240-second frames taken with clear filter on HII OIII enhanced starless frame. It resulted in this dust and gas enhanced and stars crisp image. Great Carina Nebula was bright here.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband Filter or Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with dual narrowband filter.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband Filter or Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with dual narrowband filter.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband Filter or Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with dual narrowband filter. Stars near left upper corner trailed due to differential atmospheric refraction near the horizon.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband Filter or Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with dual narrowband filter. Stars near left upper corner trailed due to differential atmospheric refraction near the horizon.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband Filter or Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got far clearer with the filter and starless conversion. It was visible clearly that oxygen III clouds of Vela SuperNova Remnant were distributed faintly and widely toward west. I hope to image the area again with longer optics.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got far clearer with the filter and starless conversion. It was visible clearly that oxygen III clouds of Vela SuperNova Remnant were distributed faintly and widely toward west. I hope to image the area again with longer optics.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Vela SNR got clearer with the filter. Stars near left upper corner trailed due to differential atmospheric refraction near the horizon.

Equipment: Sigma 28mmF1.4 "Art," IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 9 times x 1,800 seconds, 8 x 900 sec, 11 x 240 sec, and 12 x 60 seconds at ISO 6,400 and f/3.5

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.

Equipment: Sigma 28mmF1.4 "Art" and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5

site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.

Equipment: Sigma 28mmF1.4 "Art" and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5

site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.

Equipment: Sigma 28mmF1.4 "Art" and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5

site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.

Equipment: Sigma 28mmF1.4 "Art" and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding

Exposure: 7 times x 900 seconds, 4 x 240 sec, and 4 x 60 seconds at ISO 1,600 and f/3.5

site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile

Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.

This frames the asterism called the False Cross, made of stars in Vela at top and Carina at right.

The brightest star is the orange star Avior or Epsilon Carinae at lower right. To the right of it is the large naked-eye star cluster NGC 2516, called the Southern Beehive. At top above the star Delta Velorum is the large but sparse star cluster IC 2391, called the Omicron Velorum Cluster after its brightest star. At far left near the orange star N Velorum is the small star cluster IC 2488. At top are the easternmost magenta tendrils of the vast Gum Nebula.

This is a stack iof 10 x 2 minute exposures with the Canon RF135mm lens at f/2 on the Canon Ra at ISO 800. The lens had an URTH 82mm Night broadband filter on it. Tracked but not guided on the Astro-Physics AP400 mount, from Australia in March 2024 on a night dedicated to shooting 135mm telephoto lens fields along the Milky Way.

This is the Omicron Velorum cluster in Vela, catalogued as IC 2391, a bright naked-eye star cluster, though rather sparse when viewed through a telescope even at low power.

The bright star at bottom is Delta Velorum, the eastern star of rhe False Cross. The dim star cluster to the left of IC 2391 is NGC 2669. The field is immersed in faint nebulosity from the large Gum Nebula in Puppis and Vela.

This is a stack of 8 x 5 minute exposures with the Sharpstar 61mm EDOH III refractor at f/4.4 and the filter-modified (by AstroGear.net) Canon R at ISO 800. No filter was employed here. On the AP 400 mount autoguided with the MGEN3 stand-alone guider. Taken from near Coonabarabran, NSW, Australia, in March 2024.

This glittering group of stars, shining through the darkness like sparks left behind by a firework, is NGC 2660 in the constellation Vela, best viewed in the southern sky. NGC 2660 is an open cluster, a type of star cluster that can contain anywhere from tens to a few hundreds of stars loosely bound together by gravity. The stars of open clusters form out of the same region of gas and dust and thus share many characteristics, such as age and chemical composition. Unlike globular clusters ― their ancient, denser, and more tightly-packed cousins ― open clusters are easier to study since astronomers can more easily distinguish between individual stars. Their stars can be old or young, and they may disperse after a few million years into the spiral or irregular galaxies where they are born.

The spikes surrounding many of the stars in this image are “diffraction spikes,” which occur when the glow from bright points of light reflects off of the Hubble Space Telescope's secondary mirror support. The bright red object to the left with the very prominent diffraction spikes is a foreground star that is not part of the cluster. Hubble observed this open cluster as part of a program to study the ages of white dwarf stars in open clusters.

Credit: NASA, ESA and T. von Hippel (Embry-Riddle Aeronautical University); Processing: Gladys Kober (NASA/Catholic University of America)

For Hubble’s Star Clusters page, visit: www.nasa.gov/content/discoveries-hubbles-star-clusters

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IC 2391 & NGC 2669. Apilado de 70x30 segs (35min). f:400mm @ F/5.7, ISO 800. Canon 450D +Celestron 70/400, montura CG4. 29-12-2013